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  • Author or Editor: Elena Belloni x
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Pulmonary interstitial emphysema (PIE) is a rare condition most commonly encountered in mechanically ventilated patients, either infants or adults. This condition can also be diagnosed in blunt chest trauma or other conditions while performing Valsalva-like maneuvers and is often associated with pneumothorax and subcutaneous emphysema. We present the case of a patient with subtle PIE, subcutaneous emphysema and massive pneumomediastinum after protracted vomiting following a suicidal attempt by caustic ingestion. Radiologists should be aware of the potentially subtle Computed Tomography features of PIE in order to make the correct diagnosis and rule out other tracheobronchial and esophageal injuries.

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